/*
 * Copyright 2016, gRPC Authors All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#if SWIFT_PACKAGE
import CgRPC
import Dispatch
#endif
import Foundation

public enum CallError: Error {
  case ok
  case unknown
  case notOnServer
  case notOnClient
  case alreadyAccepted
  case alreadyInvoked
  case notInvoked
  case alreadyFinished
  case tooManyOperations
  case invalidFlags
  case invalidMetadata
  case invalidMessage
  case notServerCompletionQueue
  case batchTooBig
  case payloadTypeMismatch
  
  case completionQueueShutdown
  
  static func callError(grpcCallError error: grpc_call_error) -> CallError {
    switch error {
    case GRPC_CALL_OK:
      return .ok
    case GRPC_CALL_ERROR:
      return .unknown
    case GRPC_CALL_ERROR_NOT_ON_SERVER:
      return .notOnServer
    case GRPC_CALL_ERROR_NOT_ON_CLIENT:
      return .notOnClient
    case GRPC_CALL_ERROR_ALREADY_ACCEPTED:
      return .alreadyAccepted
    case GRPC_CALL_ERROR_ALREADY_INVOKED:
      return .alreadyInvoked
    case GRPC_CALL_ERROR_NOT_INVOKED:
      return .notInvoked
    case GRPC_CALL_ERROR_ALREADY_FINISHED:
      return .alreadyFinished
    case GRPC_CALL_ERROR_TOO_MANY_OPERATIONS:
      return .tooManyOperations
    case GRPC_CALL_ERROR_INVALID_FLAGS:
      return .invalidFlags
    case GRPC_CALL_ERROR_INVALID_METADATA:
      return .invalidMetadata
    case GRPC_CALL_ERROR_INVALID_MESSAGE:
      return .invalidMessage
    case GRPC_CALL_ERROR_NOT_SERVER_COMPLETION_QUEUE:
      return .notServerCompletionQueue
    case GRPC_CALL_ERROR_BATCH_TOO_BIG:
      return .batchTooBig
    case GRPC_CALL_ERROR_PAYLOAD_TYPE_MISMATCH:
      return .payloadTypeMismatch
    default:
      return .unknown
    }
  }
}